Rhino68W Posted September 2, 2015 Posted September 2, 2015 Saw some guys on another forum discussing that the "Turnover" was starting to happen on Lake Fork, but many people were arguing it. All I know is that it's when the surface temp falls below the temp of the deeper water. Have you heard of this theory before? And if so, what advantages does it give the angler? Quote
Super User scaleface Posted September 2, 2015 Super User Posted September 2, 2015 Youre right. The surface water mixes with deeper water when the temps drop. Seems a little early to me especially for Texas but Ive never fished in T exas . Quote
lo n slo Posted September 2, 2015 Posted September 2, 2015 None that I know of but stand by for differing opinoins Quote
Josh Smith Posted September 2, 2015 Posted September 2, 2015 Hello, There are no advantages. You have layers of water -- top, thermocline, and bottom. The top layer is oxygenated. The lower layer is not. When turnover happens, the top layer sinks and the layers disappear. The lake's oxygen drops. While the critters of the lake adapt, it's very difficult to get much of anything to bite. And yes, it's still too early for Fall Turnover. Regards, Josh 1 Quote
Super User scaleface Posted September 2, 2015 Super User Posted September 2, 2015 Heres my thinking and I may be completely wrong. Light doesnt go deeper than the thermocline. I use to have a light meter and this was always the case when I tested it. So after the turnover I dont fish deeper than where the thermocline was before , if the water is about the same clarity . Quote
Super User WRB Posted September 3, 2015 Super User Posted September 3, 2015 This topic comes up every year several times, try using the site search tool or Google. The thermocline or fall turnover isn't a theory. Tom 2 Quote
Super User K_Mac Posted September 3, 2015 Super User Posted September 3, 2015 Josh's post sums it up succinctly. As WRB says there is much more information available with just a cursory search. Quote
Super User fishballer06 Posted September 3, 2015 Super User Posted September 3, 2015 This topic comes up every year several times, try using the site search tool or Google. The thermocline or fall turnover isn't a theory. Tom Tom's totally right. This subject comes up numerous times every year on almost every fishing forum out there. A quick search will give you an answer. Quote
Super User Catt Posted September 3, 2015 Super User Posted September 3, 2015 It's a tad bit early for Fork to turn over 2 Quote
Kentuckysteve Posted September 4, 2015 Posted September 4, 2015 when a lake turns over it kills the bite for a while.I dont know if it shocks the fish or what but it's hard to catch anything.I have seen farm ponds turn over and kill the fish.It used to happen a lot more than it does now.When i was young it seemed like a normal thing in the heat of the summer to hear about the fish dying in someones pond because of the turnover. Quote
Super User WRB Posted September 4, 2015 Super User Posted September 4, 2015 Hoping some folks would research this instead of rehashing this again. The pond question deserves some clarification. Ponds are very small bodies of water and usually less than 15 feet deep. Shallow water is subject to fast warming and fast cooling water column, plus lots of aquatic vegetation. Fish die from dissolved oxygen depletion or fast water column temperature changes of more than 10 degrees within 24 hours, not normally from a turnover. When aquatic growth, weeds or grass or whatever you call it, dies it sinks to the bottom and decays. The bottom organic debris decay consumes oxygen, lowering the dissolved oxygen levels in deeper water. If the water column has layered forming a thermocline, the thermocline seals off the upper layer of warmer water from the cooler lower layers with low DO levels due to debris decay. A thermocline is the transition layer between warmer and colder water. The tipping point occurs when the upper water layer cools fast. Cold water is heavier than warm water, the cool heavy water sinks lifting the bottom water layer to the surface, the process is called a turnover. The low DO water and bottom debris comes to the surface, this shocks the fish until the water column equalizes, about a 2 week period. You can see floating bottom scrum debris and smell the sulphur like odor of a turnover. Colder nights combined with shorter days cools the surface water, natural process that happens during the fall, ie; fall turnover. Tom 1 Quote
Kentuckysteve Posted September 4, 2015 Posted September 4, 2015 Thanks Tom.You made that very easy to understand. Quote
Super User Montanaro Posted September 4, 2015 Super User Posted September 4, 2015 When you see a lot of organic debris on surface and notice an odor, then you know turnover happened. Fish dirt shallow if you want to catch anything. Quote
LinkLow Posted September 4, 2015 Posted September 4, 2015 It's happening in Texas right now whether you choose to believe it or not. Went to Fork a few weeks ago and guides said it was turning over. The 3 lakes in my area are turning over. Lots of dead baitfish floating, thermocline CLEARLY visible on graph, etc. Hopefully the process won't drag on too long... Quote
Super User scaleface Posted September 4, 2015 Super User Posted September 4, 2015 It's happening in Texas right now whether you choose to believe it or not. Went to Fork a few weeks ago and guides said it was turning over. The 3 lakes in my area are turning over. Lots of dead baitfish floating, thermocline CLEARLY visible on graph, etc. Hopefully the process won't drag on too long... If the thermocline is clearly visible then does that not mean the lake hasnt turned over ? 1 Quote
Super User scaleface Posted September 4, 2015 Super User Posted September 4, 2015 Sorry for the double negative . Quote
Josh Smith Posted September 4, 2015 Posted September 4, 2015 It's happening in Texas right now whether you choose to believe it or not. Went to Fork a few weeks ago and guides said it was turning over. The 3 lakes in my area are turning over. Lots of dead baitfish floating, thermocline CLEARLY visible on graph, etc. Hopefully the process won't drag on too long... I can't really comment other than to say it just seems too early. You're there and are obviously seeing it. What kind of weather have you had this year? In Indiana, at least in one small lake (10 acres) I've been studying for a couple years now, it looks like we may have had a second spawn, which would be a first for me. Thank you, Josh Quote
Catch 22 Posted September 4, 2015 Posted September 4, 2015 Its mother nature "water boarding" fish. Catching usually poor as said,my least fav time to fish sweet water. Solution ===fish tidal salt water or rivers Quote
Super User Catt Posted September 4, 2015 Super User Posted September 4, 2015 It's happening in Texas right now whether you choose to believe it or not. Went to Fork a few weeks ago and guides said it was turning over. The 3 lakes in my area are turning over. Lots of dead baitfish floating, thermocline CLEARLY visible on graph, etc. Hopefully the process won't drag on too long... The conditions maybe starting but CLEARLY seeing a thermocline is proof it aint! For the upper layer to sink through the thermocline it must be colder that the water below the thermocline. 1 Quote
Super User Montanaro Posted September 4, 2015 Super User Posted September 4, 2015 No thermocline during or after turnover. Thermoclines are clearly visible when there is a a big difference in the density of water. Quote
lo n slo Posted September 4, 2015 Posted September 4, 2015 Could be low DO levels due to extreme temps plus high tubidity, usually dying algae, but not always. Hypoxia or something like that. Quote
Global Moderator Bluebasser86 Posted September 5, 2015 Global Moderator Posted September 5, 2015 We haven't turned over in Kansas yet, it isn't turning over at Fork. Quote
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